Market Context — Why This Technology, Why Now

Global electrification initiatives, spanning electric vehicles to grid-scale energy storage, are creating immense pressure for advancements in battery technology. Regulatory mandates for lower emissions and increased energy efficiency, coupled with consumer demand for longer-lasting and faster-charging devices, are pushing battery manufacturers to innovate beyond current capabilities. This technology offers a pathway to meet these escalating demands, providing a competitive edge in a rapidly evolving market driven by sustainability goals and performance benchmarks.

Key Competitive Advantages
01

Achieves High Capacity and Extended Cycle Life: This technology suppresses the volume expansion issue of conventional silicon anodes using a composite structure of crushed graphite and porous silicon particles, enabling both high capacity and excellent cycle characteristics.

02

Graphene Layer Enhances Performance Significantly: A single-layer graphene film formed on the current collector surface reduces interfacial resistance and improves electron conductivity. This could further stabilize cycle characteristics and maximize battery life.

03

Strong Uniqueness in a Highly Competitive Field: This technology secured patentability despite over 10 prior art documents, offering a clear differentiation factor to replace existing products.

Market Opportunity
Electric Vehicles (EVs)
$30B–$50B globally (AI est.)
Strong demand for extended driving range and faster charging necessitates high energy density and long-life batteries.
Tier 1 automotive battery manufacturers EV powertrain integrators Advanced materials suppliers for automotive
Energy Storage Systems (ESS)
$5B–$10B globally (AI est.)
Expanding renewable energy integration requires large-capacity, long-life energy storage systems for grid stabilization.
Grid-scale battery developers Renewable energy project developers Industrial energy management solution providers
Portable Devices
$1B–$2.5B globally (AI est.)
High-performance battery demand exists for smaller, lighter, and longer-operating smartphones and wearable devices.
Consumer electronics OEMs Wearable technology manufacturers Portable medical device companies
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a robust, unique technology that successfully overcame multiple examiner objections in a highly competitive field with over 10 prior art documents. It specifically defines the composition and structure of the anode material, as well as its combination with a current collector, making it difficult for competitors to circumvent.

Competitive White Space

This patent focuses on anode material composition and current collector interface. Licensees could explore novel electrolyte formulations or advanced battery management systems to further optimize overall cell performance.

Economic Impact
~$1M/year estimated material cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

By using a composite of porous silicon particles and crushed graphite instead of expensive special silicon, this technology could reduce material costs by 15%. For example, an annual anode material cost of $6.5M (AI est.) could see a $1M (AI est.) reduction. Furthermore, enhanced product competitiveness from extended cycle life could lead to increased product pricing, market share expansion, and revenue growth, significantly boosting profitability for adopting companies.

Speed to Market
6× faster than in-house development
This technology's technical foundation is well-established, with detailed disclosure of the anode material's specific composition, particle size, structure, and manufacturing methods in the patent specification. This could significantly reduce R&D time compared to developing similar technology from scratch. Key technical elements like silicon-graphite composite formation and graphene layer deposition are clearly defined, allowing licensees to focus on prototyping and scaling to mass production, accelerating time-to-market.
Competitive Positioning

X: Energy Density (Wh/kg)
Y: Cycle Stability & Life

Business Models & Applications
🤝 Material Licensing Model
Grant licenses to battery and material manufacturers for the production and sale of anode materials based on this technology, generating royalty revenue.
🧪 High-Performance Battery Co-Development Model
Collaborate with EV manufacturers and energy storage system integrators to develop custom batteries optimized for specific applications, monetizing through technology fees and product sales.
📦 Anode Material Supply Model
Adopting companies manufacture anode materials using this technology in-house and supply them directly to battery manufacturers, establishing themselves as high-value material suppliers.
Adjacent Application Opportunities
🚀 Aerospace & Drones
Ultra-Lightweight, High-Endurance Drone Batteries
Provide batteries leveraging this technology's high energy density and long-life characteristics for industrial drones and eVTOLs requiring extended flight times. This could significantly extend operational duration while increasing payload capacity.
🤖 Industrial Robotics & AGVs
Extended Operation Robotic Batteries
Apply to batteries for industrial robots and AGVs operating in factories and warehouses. Reducing charging frequency and extending continuous operation could contribute to increased productivity and reduced maintenance costs.
🏥 Medical Devices
Long-Life Wearable Medical Devices
Offer safe, reliable, compact, and long-life batteries for implantable and wearable medical devices. This could reduce patient burden and replacement frequency, contributing to improved healthcare service quality.
Integration Roadmap — Estimated 22-Month Deployment
Material Evaluation & Basic Design
Duration: 4 months
Evaluate anode material properties and conduct basic design for compatibility with existing manufacturing processes.
Prototype Development & Performance Validation
Duration: 8 months
Develop small-scale prototype batteries and validate performance, including cycle characteristics, energy density, and safety.
Mass Production Process Optimization & Market Launch
Duration: 10 months
Optimize manufacturing processes and establish quality control for mass production, aiming for initial market product introduction.
Technical Feasibility
This technology is estimated to have high compatibility with existing anode manufacturing processes in lithium-ion battery production lines. The formation of crushed graphite and porous silicon particle composites, as described in the patent, could be achieved by applying existing mixing and coating techniques. Graphene layer formation on current collectors may also be compatible with common thin-film deposition technologies like CVD. This could enable relatively smooth technology adoption while minimizing large-scale capital investment.
Success Scenario
If adopted, this technology could enable EV batteries to achieve a 15% increase in driving range for the same size and weight. Cycle life is also expected to extend by up to 2x compared to conventional solutions, significantly reducing battery replacement frequency for users. Consequently, adopting companies could dramatically enhance product competitiveness, establish a premium market position, and are estimated to expand market share by 10% within a few years.
Patent Record
APPLICATION NO.
JP2023-123194
REGISTRATION NO.
7696640
FILING DATE
2023/07/28
GRANT DATE
2025/06/13
EXPIRATION DATE
2043/07/28
PATENT HOLDER
学校法人東京電機大学
Examination History
2023-08-03
Statement Requesting Accelerated Examination
2023-08-03
Request for Examination
2023-08-29
Notice re: Accelerated Examination
2023-10-17
Office Action
2024-02-10
Applicant's Response
2024-02-10
Amendment (Voluntary)
2024-05-14
Decision of Refusal
2024-07-17
Amendment (Voluntary)
2024-07-29
Transfer to Pre-Appeal Reconsideration
2024-07-30
Notice of Transfer to Pre-Appeal Reconsideration
2024-11-01
Release from Pre-Appeal Reconsideration
2024-11-12
Notice of Release from Pre-Appeal Reconsideration
2025-04-08
Office Action
2025-04-21
Amendment (Voluntary)
2025-04-21
Applicant's Response
2025-04-28
Amendment (Voluntary)
2025-04-28
Applicant's Response
2025-06-03
Decision to Grant